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A hotel is in the shape of a cylinder, with a circular foundation. The circumference of the foundation is

2 times the radius, increased by 273.92 ft. Find the radius of the circular foundation. Use 3.14 as an approximation for piπ.

The radius of the foundation is approximately ____ ft. ft².ft³.

ladiikeiii Dec 5, 2017

CPhill · Answer 1 · 2017-12-05T05:08:28

C = 2*radius + 273.92 (1)

C = 2 * 3.14 * radius = 6.28* radius (2)

Set (1) = (2) and we have that

2r + 273.92 = 6.28r subtract 2r from both sides

273.92 = 4.28r divide both sides by 4.28

273.92 / 4.28 = r = 64 ft